Correlation of Thyroid Hormones and Testes Weight Across Pineal-Related Perturbations

摘要

Exposure of Syrian hamsters of either sex to a short daily photoperiod or blinding by bilateral orbital enucleation results in suppression of serum tetraiodothyronine (T4) and triiodothyronine (T3) concentrations and regression of the reproductive system. These effects are prevented by pinealectomy or subcutaneous implants of the pineal hormone melatonin in beeswax pellets. However, there has been little focus on correlation between the reproductive system and thyroid hormones. We now examine this correlation across several perturbations.